elgin pallet fork

Discussion in 'Watch Repair' started by tracker, Dec 3, 2019.

  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  1. tracker

    tracker Registered User

    Aug 15, 2007
    100
    0
    16
    retired naval aviator
    Country Flag:
    Region Flag:
    I could use some ideas on was to line up a pallet fork on an elgin grade 102 18 size pocket watch.I can't seem to get the end of the fork to extend out into the lower plate and line up withe balance without pulling the pallet fork pivots out of the jewels. Are there any secrets to this? Thanks.
     
  2. musicguy

    musicguy Moderator
    NAWCC Member Sponsor

    Jan 12, 2017
    4,264
    1,781
    113
    New York State
    Country Flag:
    Moving thread to watch repair.



    Rob
     
  3. Rick Hufnagel

    Rick Hufnagel Just Rick!
    NAWCC Member Donor Sponsor

    Oct 25, 2018
    1,061
    1,280
    113
    Male
    Plumber
    Pittsburgh pa
    Country Flag:
    Region Flag:
    #3 Rick Hufnagel, Dec 3, 2019
    Last edited: Dec 3, 2019
    Are you putting it together "upside down"?

    You have to put the upper plate down, place all of the wheels and pallet fork in their pivot holes, and slide the pillar plate over the center staff.

    First line up the 4TH pivot. The one the second hand sits on.

    After that slides through the pivot hole, wiggle the center staff again to make sure it's seated.

    Then the third pivot goes next.
    Then the pallet fork
    Lastly the escape wheel.

    If you do it "upside down" in that order it should go together easily.
     
  4. Dave Coatsworth

    Dave Coatsworth Forums Administrator
    NAWCC Business Sponsor

    Feb 11, 2005
    6,167
    1,091
    113
    Camarillo, CA
    Country Flag:
    Region Flag:
    A second method, which I was originally taught, is to use a bit of Rodico to hold the pallet fork to the top plate during assembly. Then you can assemble the movement right-side-up.
     
  5. Randy Beamer

    Randy Beamer Registered User

    Jul 5, 2011
    112
    0
    16
    Male
    Retired
    Davenport Washington
    Country Flag:
    Region Flag:
    potentclip.jpg

    David's suggestion is easy and works great. I use a "potence" clip, made from a section of old mainspring to hold the pallet fork in place. This is the one use. My father made at the Bulova school in the '40's...
     
  6. musicguy

    musicguy Moderator
    NAWCC Member Sponsor

    Jan 12, 2017
    4,264
    1,781
    113
    New York State
    Country Flag:
    A watchmaker friend of mine Merlin Meyer made one of these and sent it to me.
    He "kind of" taught me some watchmaking over the phone.
    (same as Randy's above)


    Rob
     
  7. Rick Hufnagel

    Rick Hufnagel Just Rick!
    NAWCC Member Donor Sponsor

    Oct 25, 2018
    1,061
    1,280
    113
    Male
    Plumber
    Pittsburgh pa
    Country Flag:
    Region Flag:
    Im glad you got it!

    I don't know, pretty much every watch i work on is a full plate Elgin or Hampden, and I never need potence clips or rodico and it goes together quick and easy 99% of the time. Whats the advantage of putting it together with the top plate up? Just curious.
     
  8. Rob P.

    Rob P. Registered User

    Dec 19, 2011
    1,734
    63
    48
    California
    Country Flag:
    Region Flag:
    As was said, assemble upside down. Put all the gears into position on the top plate with the end of the pallet fork in the potence (the can), carefully drop the main plate over them so that the seconds pinion goes into its jewel as the plate goes on.

    From there it's wiggle and tease the remaining pivots into position. Do not invert until they're all in place and you can hold the plates together between your fingers.
     
  9. Skutt50

    Skutt50 Registered User

    Mar 14, 2008
    3,375
    88
    48
    Male
    Gothenburg
    Country Flag:
    I agree with the upside down method.

    This method makes the center wheel and seconds wheel very easy to fit and leaves only three pivots to wiggle in place in comparison with the "normal" method where five pivots needs to be wiggled........

    Graham has in another thread described how he holds the plates together by using a pair of rubber bands. This gives a mild tension on the plates but they do not jump loose "on their own".
     
  10. gmorse

    gmorse Registered User
    NAWCC Member

    Jan 7, 2011
    10,348
    1,096
    113
    Male
    Retired from Xerox
    Breamore, Hampshire, UK
    Country Flag:
    Region Flag:
    Hi tracker,

    It's here.

    Regards,

    Graham
     
  11. GeneJockey

    GeneJockey Registered User
    NAWCC Member

    Mar 2, 2012
    1,464
    489
    83
    Male
    Scientist
    Country Flag:
    Region Flag:
    I do it upside down, too. It's always satisfying when the last pivot goes in the hole and the pillar plate drops into place.
     

Share This Page